mdoc for the man page

[somercet]

First off: I love nnn(1). The batch rename capability is amazing, and I love the "tabbed" context pages that make it easy to select and move files.

[N-R-K]

Hey, thanks for effort but I don't think anyone on the team is an "mdoc enthusiast". So we just use whatever works. So even if we merge your change, there's no guarantee that "bad mdoc" won't creep in later.

Unless your changes are fixing some actual problem (e.g correctly rendering/aligning stuff where it currently doesn't do so) then I don't think we want to merge stuff to solve imaginary/purist problems.